Trigonometry Introduction - Corbettmaths

This is part 1 of 3 of the trigonometry trilogy! In lesson we will establish the trigonometric ratios. This video explains how to label the sides, what the trigonometric ratios are and how to change your calculator to 'degrees mode'.
Practice Questions: https://corbettmaths.com/2019/08/29/t...

00:00 - Intro
00:13 - Labelling Right Angle Triangles
02:04 - The Trigonometric Ratios
03:23 - Degrees Mode
05:07 - Summary